Decision Workspace
greg-tz vs tz-rs vs chrono-tz
Side-by-side comparison of Rust crates
56
greg-tz
growingv0.2.9
greg timezone data
64
tz-rs
growingv0.7.3
A pure Rust reimplementation of libc functions localtime, gmtime and mktime.
63
chrono-tz
growingv0.10.4
TimeZone implementations for chrono from the IANA database
Core Metrics
| greg-tz | tz-rs | chrono-tz | |
|---|---|---|---|
| Health Score | 56 | 64 | 63 |
| Total Downloads | 12.0K | 15.7M | 112.2M |
| 30d Downloads | 0 | 1.0M | 8.5M |
| Dependents | 0 | 372 | 10.4K |
| Releases | 13 | 32 | 36 |
| Last Updated | 19d ago | 116d ago | 318d ago |
| Age | 3y 7m | 4y 3m | 9y 7m |
Health Breakdown
greg-tz
Maintenance
20
Quality
13
Community
5
Popularity
5
Documentation
13
tz-rs
Maintenance
13
Quality
18
Community
13
Popularity
8
Documentation
12
chrono-tz
Maintenance
8
Quality
13
Community
19
Popularity
8
Documentation
15
Technical Details
| greg-tz | tz-rs | chrono-tz | |
|---|---|---|---|
| Version | 0.2.9 | 0.7.3 | 0.10.4 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | GPL-3.0-or-later | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 3 | 0 | 10 |
| Crate Size | 656KB | 48KB | 794KB |
| Features | 0 | 3 | 5 |
| Yanked % | 0.0% | 0.0% | 2.8% |
| Edition | 2024 | 2024 | 2021 |
| MSRV | — | 1.85 | 1.65 |
| Owners | 1 | 1 | 2 (team) |
Links
Quick Verdict
- •tz-rs leads with a health score of 64/100, but none of the options score above 80.
- •chrono-tz has the most downloads (112.2M), suggesting wider adoption.
- •chrono-tz is depended on by 10.4K crates — strongest ecosystem trust.